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Commons Modeler example source code file (ConstructorInfo.java)
This example Commons Modeler source code file (ConstructorInfo.java) is included in the DevDaily.com
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The Commons Modeler ConstructorInfo.java source code
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.modeler;
import java.io.Serializable;
import javax.management.Descriptor;
import javax.management.MBeanParameterInfo;
import javax.management.modelmbean.ModelMBeanConstructorInfo;
/**
* <p>Internal configuration information for a Constructor
* descriptor.</p>
*
* @author Craig R. McClanahan
* @version $Revision: 480402 $ $Date: 2006-11-29 04:43:23 +0000 (Wed, 29 Nov 2006) $
*/
public class ConstructorInfo extends FeatureInfo implements Serializable {
static final long serialVersionUID = -5735336213417238238L;
// ----------------------------------------------------- Instance Variables
/**
* The <code>ModelMBeanConstructorInfo object that corresponds
* to this <code>ConstructorInfo instance.
*/
transient ModelMBeanConstructorInfo info = null;
protected String displayName = null;
protected ParameterInfo parameters[] = new ParameterInfo[0];
// ------------------------------------------------------------- Properties
/**
* Override the <code>description property setter.
*
* @param description The new description
*/
public void setDescription(String description) {
super.setDescription(description);
this.info = null;
}
/**
* Override the <code>name property setter.
*
* @param name The new name
*/
public void setName(String name) {
super.setName(name);
this.info = null;
}
/**
* The display name of this attribute.
*/
public String getDisplayName() {
return (this.displayName);
}
public void setDisplayName(String displayName) {
this.displayName = displayName;
}
/**
* The set of parameters for this constructor.
*/
public ParameterInfo[] getSignature() {
return (this.parameters);
}
// --------------------------------------------------------- Public Methods
/**
* Add a new parameter to the set of parameters for this constructor.
*
* @param parameter The new parameter descriptor
*/
public void addParameter(ParameterInfo parameter) {
synchronized (parameters) {
ParameterInfo results[] = new ParameterInfo[parameters.length + 1];
System.arraycopy(parameters, 0, results, 0, parameters.length);
results[parameters.length] = parameter;
parameters = results;
this.info = null;
}
}
/**
* Create and return a <code>ModelMBeanConstructorInfo object that
* corresponds to the attribute described by this instance.
*/
public ModelMBeanConstructorInfo createConstructorInfo() {
// Return our cached information (if any)
if (info != null)
return (info);
// Create and return a new information object
ParameterInfo params[] = getSignature();
MBeanParameterInfo parameters[] =
new MBeanParameterInfo[params.length];
for (int i = 0; i < params.length; i++)
parameters[i] = params[i].createParameterInfo();
info = new ModelMBeanConstructorInfo
(getName(), getDescription(), parameters);
Descriptor descriptor = info.getDescriptor();
descriptor.removeField("class");
if (getDisplayName() != null)
descriptor.setField("displayName", getDisplayName());
addFields(descriptor);
info.setDescriptor(descriptor);
return (info);
}
/**
* Return a string representation of this constructor descriptor.
*/
public String toString() {
StringBuffer sb = new StringBuffer("ConstructorInfo[");
sb.append("name=");
sb.append(name);
sb.append(", description=");
sb.append(description);
sb.append(", parameters=");
sb.append(parameters.length);
sb.append("]");
return (sb.toString());
}
}
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